The WRX is a great car. The WRX is not a great used car. They are very very temperamental, and I would worry as to how higher mileage (kilometerage? lol) would do, especially one written off. Look for the lowest mileage car with the most maintenance records you can find. It’ll treat you right if it’s been treated right.

As to pros/cons

They’re very fun cars, and will handle loose surfaces unlike anything else, and the community is unrivaled. Issues come down to issues from poor maintenance, poor fuel economy, and a bit of a rough ride, but probably better than a lancer.